Denmark's National Inventory Report 2005 - Submitted under the ...

1.4 Brief general description of methodologies and data sources used
Denmark’s air emission inventories are based on the Revised 1996 Intergovernmental Panel on
Climate Change (IPCC) Guidelines for National Greenhouse Gas Inventories (IPCC, 1997), the
Good Practice Guidance and Uncertainty Management in National Greenhouse Gas Inventories
(IPCC, 2000) and the CORINAIR methodology. CORINAIR (COoRdination of Information on AIR
emissions) is a European air emission inventory programme for national sector-wise emission estimations
harmonised with the IPCC guidelines. To ensure estimates as timely, consistent, transparent,
accurate and comparable as possible, the inventory programme has developed calculation
methodologies for most sub-sectors and software for storage and further data processing
(Richardson, S. (Ed), 1999).
A thorough description of the CORINAIR inventory programme used for Danish emission estimations
is given in Illerup et al. (2000). The CORINAIR calculation principle is to calculate the
emissions as activities multiplied by emission factors. Activities are numbers referring to a specific
process generating emissions, while an emission factor is the mass of emissions per unit activity.
Information on activities to carry out the CORINAIR inventory is mainly based on official statistics.
The most consistent emission factors have been used, either as national values or default factors
proposed by the CORINAIR methodology. The documentation on the CORINAIR methodology
can be obtained from the “Joint EMEP/CORINAIR Atmospheric Emission Inventory Guidebook,
Second edition (Richardson, S. (Ed), 1999). The documentation on the COPERT III is given in
Ntziachristos et al. (2000).
A list of all sub-sectors on the most detailed level is given in Illerup et al., 2000. Incorporated in the
CORINAIR software is a feature to serve the specific UNFCCC and UNECE convention needs for
emission reporting. The translation between CORINAIR and IPCC codes for sector classifications
are listed in Illerup et al, 2000.
1.4.1 Stationary Combustion Plants
Stationary combustion plants are part of the CRF emission sources 1A1 Energy Industries, 1A2
Manufacturing Industries and 1A4 Other sectors.
The Danish emission inventory for stationary combustion plants is based on the CORINAIR system
described in the Emission Inventory Guidebook 3 rd
edition. The inventory is based on activity
rates from the Danish energy statistics and on emission factors for different fuels, plants and sectors.
The Danish Energy Authority aggregates fuel consumption rates in the official Danish energy statistics
to SNAP categories.
For each of the fuel and SNAP categories (sector and e.g. type of plant) a set of general emission
factors has been determined. Some emission factors refer to the EMEP/CORINAIR Guidebook and
some are country specific and refer to Danish legislation, Danish research reports or calculations
based on emission data from a considerable number of plants.
Some of the large plants like e.g. power plants and municipal waste incineration plants are registered
individually as large point sources and emission data from the actual plants are used. This
enables use of plant specific emission factors that refers to emission measurements stated in annual
environmental reports etc. At present the emission factors for CO 2 , CH 4 and N 2 O are, however, not
plant specific whereas emission factors of SO 2 and NO X often are.
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